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authorJ. Bruce Fields <bfields@redhat.com>2020-05-21 17:58:15 +0300
committerJ. Bruce Fields <bfields@redhat.com>2020-05-21 17:58:15 +0300
commit6670ee2ef219ac9e1c836a277dda0c949ad8b1ff (patch)
tree0eee3d97941caab0bc85f93a7653b0cfd4abf51b /arch/arm/include/asm/futex.h
parent746c6237ece641da79df09abcf87bc29f6f9665b (diff)
parentf2453978a4f2ddb1938fa80e9bf0c9d6252bd5f8 (diff)
downloadlinux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.tar.xz
Merge branch 'nfsd-5.8' of git://linux-nfs.org/~cel/cel-2.6 into for-5.8-incoming
Highlights of this series: * Remove serialization of sending RPC/RDMA Replies * Convert the TCP socket send path to use xdr_buf::bvecs (pre-requisite for RPC-on-TLS) * Fix svcrdma backchannel sendto return code * Convert a number of dprintk call sites to use tracepoints * Fix the "suggest braces around empty body in an 'else' statement" warning
Diffstat (limited to 'arch/arm/include/asm/futex.h')
-rw-r--r--arch/arm/include/asm/futex.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index e133da303a98..a9151884bc85 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -165,8 +165,13 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
preempt_enable();
#endif
- if (!ret)
- *oval = oldval;
+ /*
+ * Store unconditionally. If ret != 0 the extra store is the least
+ * of the worries but GCC cannot figure out that __futex_atomic_op()
+ * is either setting ret to -EFAULT or storing the old value in
+ * oldval which results in a uninitialized warning at the call site.
+ */
+ *oval = oldval;
return ret;
}