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shm: handle ftruncate failure

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Daniel Eklöf 2020-03-25 18:32:41 +01:00
parent dc42cc1d19
commit e9f1638750
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1 changed files with 5 additions and 1 deletions
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6
shm.c
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@ -264,8 +264,12 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, unsigned long cookie,
if (scrollable && !can_punch_hole) { if (scrollable && !can_punch_hole) {
initial_offset = 0; initial_offset = 0;
memfd_size = size; memfd_size = size;
ftruncate(pool_fd, memfd_size);
scrollable = false; scrollable = false;
if (ftruncate(pool_fd, memfd_size) < 0) {
LOG_ERRNO("failed to set size of SHM backing memory file");
goto err;
}
} }
real_mmapped = mmap( real_mmapped = mmap(