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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-02-11 18:47:04 +0100
committerLaurent Vivier <laurent@vivier.eu>2018-02-18 18:52:32 +0100
commit5fdefcf808a6d70a26e4c536cf0a0acad9b0fff3 (patch)
tree2be6b405e888714816c58f5eb5c5bde8013e4636 /linux-user
parent2c418853b9ba099b98834000386f54abe9aaec47 (diff)
downloadqemu-5fdefcf808a6d70a26e4c536cf0a0acad9b0fff3.tar.gz
linux-user: Fix sched_getaffinity mask size
We properly computed the capped mask size to be put to the application buffer, but didn't actually used it. Also, we need to return the capped mask size instead of 0 on success. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180211174704.27441-1-samuel.thibault@ens-lyon.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/syscall.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index effc3a0881..e24f43c4a2 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -10502,7 +10502,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
ret = arg2;
}
- ret = host_to_target_cpu_mask(mask, mask_size, arg3, arg2);
+ if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
+ goto efault;
+ }
}
}
break;