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Properly check mmap return value

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5150>
(cherry picked from commit be71e2fd08)
This commit is contained in:
Hanno Böck 2020-05-21 18:51:06 +02:00 • committed by Eric Engestrom
parent 8cb8c7f0f1
commit cb5d60b7d9
2 changed files with 2 additions and 2 deletions
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2
.pick_status.json
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@ -1300,7 +1300,7 @@
"description": "Properly check mmap return value",
"nominated": false,
"nomination_type": null,
"resolution": 4,
"resolution": 1,
"master_sha": null,
"because_sha": null
},

2
src/freedreno/perfcntrs/fdperf.c
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@ -396,7 +396,7 @@ 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");
}