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Properly check mmap return value

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5150>
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Hanno Böck 2020-05-21 18:51:06 +02:00 • committed by Marge Bot
parent 38f32372aa
commit be71e2fd08
1 changed files with 1 additions and 1 deletions
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2
src/freedreno/perfcntrs/fdperf.c
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@ -332,7 +332,7 @@ find_device(void)
err(1, "could not open /dev/mem");
dev.io = mmap(0, dev.size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, dev.base);
if (!dev.io) {
if (dev.io == MAP_FAILED) {
close(fd);
err(1, "could not map device");
}