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Merge "uevent.c: avoid POLLERR infinite loop" into main am: cc5dc08c15 am: 566a2901e9

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Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware_legacy/+/2878224

Change-Id: Ic0c5497a1e2a6de75e38c422efc8ef445002d915
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Steven Moreland 2024-01-03 22:15:56 +00:00 committed by Automerger Merge Worker
commit 2d47fe3f42
2 changed files with 13 additions and 0 deletions
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1
Android.bp
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@ -79,6 +79,7 @@ cc_library_shared {
shared_libs: [
"android.system.suspend-V1-ndk",
"libdl",
"liblog",
],
header_libs: [

12
uevent.c
View file

@ -16,6 +16,8 @@
#include <hardware_legacy/uevent.h>
#include <log/log.h>
#include <malloc.h>
#include <string.h>
#include <unistd.h>
@ -94,6 +96,16 @@ int uevent_next_event(char* buffer, int buffer_length)
return count;
}
}
if (nr > 0 && (fds.revents & POLLERR)) {
int error = 0;
socklen_t errlen = sizeof(error);
getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &errlen);
// see b/300009377, this used to be an infinite loop
// abort to try to recover
LOG_ALWAYS_FATAL("Uevent POLLERR: %s, on FD %d", strerror(error), fd);
}
}
// won't get here