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synced 2024-12-23 02:19:49 +01:00
Fix bugs listed by clang's static analyzer
A few pedantic changes and unused variables (1-4), and genuine bugs (5, 6). The reports with the corresponding files and lines numbers are as follows. 1. backend/libinput/tablet_pad.c@31,44,57 "Allocator sizeof operand mismatch" "Result of 'calloc' is converted to a pointer of type 'unsigned int', which is incompatible with sizeof operand type 'int'" 2. types/tablet_v2/wlr_tablet_v2_pad.c@371 "Allocator sizeof operand mismatch" "Result of 'calloc' is converted to a pointer of type 'uint32_t', which is incompatible with sizeof operand type 'int'" 3. types/wlr_cursor.c@335 "Dead initialization" "Value stored to 'dx'/'dy' during its initialization is never read" 4. rootston/xdg_shell.c@510 "Dead initialization" "Value stored to 'desktop' during its initialization is never read" 5. types/tablet_v2/wlr_tablet_v2_pad.c@475 "Dereference of null pointer" "Access to field 'strips' results in a dereference of a null pointer (loaded from field 'current_client')" The boolean logic was incorrect (c.f. the check in the following function). 6. examples/idle.c@163,174,182 "Uninitialized argument value" "1st function call argument is an uninitialized value" If close_timeout != 0, but simulate_activity_timeout >= close_timeout, the program would segfault at pthread_cancel(t1).
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parent
2f48453718
commit
8589ae19de
5 changed files with 22 additions and 17 deletions
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@ -28,7 +28,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
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++group->ring_count;
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}
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}
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group->rings = calloc(sizeof(int), group->ring_count);
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group->rings = calloc(sizeof(unsigned int), group->ring_count);
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size_t ring = 0;
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for (size_t i = 0; i < pad->ring_count; ++i) {
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if (libinput_tablet_pad_mode_group_has_ring(li_group, i)) {
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@ -41,7 +41,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
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++group->strip_count;
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}
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}
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group->strips = calloc(sizeof(int), group->strip_count);
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group->strips = calloc(sizeof(unsigned int), group->strip_count);
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size_t strip = 0;
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for (size_t i = 0; i < pad->strip_count; ++i) {
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if (libinput_tablet_pad_mode_group_has_strip(li_group, i)) {
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@ -54,7 +54,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
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++group->button_count;
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}
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}
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group->buttons = calloc(sizeof(int), group->button_count);
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group->buttons = calloc(sizeof(unsigned int), group->button_count);
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size_t button = 0;
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for (size_t i = 0; i < pad->button_count; ++i) {
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if (libinput_tablet_pad_mode_group_has_button(li_group, i)) {
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@ -152,14 +152,20 @@ int main(int argc, char *argv[]) {
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.display = display,
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};
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if (simulate_activity_timeout != 0 && simulate_activity_timeout < close_timeout) {
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bool create_t1 = (simulate_activity_timeout != 0) &&
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(simulate_activity_timeout < close_timeout);
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if (create_t1) {
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if (pthread_create(&t1, NULL, &simulate_activity, (void *)&arg) != 0) {
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return -1;
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}
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}
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if (close_timeout != 0) {
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bool create_t2 = (close_timeout != 0);
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if (create_t2) {
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if (pthread_create(&t2, NULL, &close_program, (void *)&arg) != 0) {
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if (simulate_activity_timeout != 0) {
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if (create_t1) {
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pthread_cancel(t1);
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}
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return -1;
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@ -170,18 +176,19 @@ int main(int argc, char *argv[]) {
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fprintf(stdout, "waiting\n");
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if (pthread_create(&t3, NULL, &main_loop, (void *)display) != 0) {
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if (simulate_activity_timeout != 0) {
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if (create_t1) {
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pthread_cancel(t1);
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}
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if (close_timeout != 0 ) {
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if (create_t2) {
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pthread_cancel(t2);
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}
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return -1;
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}
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if (simulate_activity_timeout != 0) {
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if (create_t1) {
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pthread_join(t1, NULL);
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}
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if (close_timeout != 0) {
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if (create_t2) {
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pthread_join(t2, NULL);
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}
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pthread_cancel(t3);
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@ -507,8 +507,6 @@ static void decoration_handle_surface_commit(struct wl_listener *listener,
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}
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void handle_xdg_toplevel_decoration(struct wl_listener *listener, void *data) {
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struct roots_desktop *desktop =
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wl_container_of(listener, desktop, xdg_toplevel_decoration);
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struct wlr_xdg_toplevel_decoration_v1 *wlr_decoration = data;
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wlr_log(WLR_DEBUG, "new xdg toplevel decoration");
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@ -368,7 +368,7 @@ struct wlr_tablet_v2_tablet_pad *wlr_tablet_pad_create(
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}
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pad->group_count = wl_list_length(&wlr_pad->groups);
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pad->groups = calloc(pad->group_count, sizeof(int));
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pad->groups = calloc(pad->group_count, sizeof(uint32_t));
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if (!pad->groups) {
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free(pad);
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return NULL;
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@ -471,9 +471,9 @@ void wlr_send_tablet_v2_tablet_pad_button(
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void wlr_send_tablet_v2_tablet_pad_strip(struct wlr_tablet_v2_tablet_pad *pad,
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uint32_t strip, double position, bool finger, uint32_t time) {
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if (!pad->current_client &&
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pad->current_client->strips &&
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pad->current_client->strips[strip]) {
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if (!pad->current_client ||
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!pad->current_client->strips ||
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!pad->current_client->strips[strip]) {
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return;
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}
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struct wl_resource *resource = pad->current_client->strips[strip];
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@ -332,7 +332,7 @@ static void handle_pointer_motion(struct wl_listener *listener, void *data) {
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static void apply_output_transform(double *x, double *y,
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enum wl_output_transform transform) {
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double dx = *x, dy = *y;
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double dx, dy;
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double width = 1.0, height = 1.0;
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switch (transform) {
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