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Commit 09cbd219 authored by WANG Chao's avatar WANG Chao Committed by Borislav Petkov
Browse files

RAS/CEC: Increment cec_entered under the mutex lock 



Modify ->cec_entered in the critical section of the mutex.

Signed-off-by: default avatarWANG Chao <chao.wang@ucloud.cn>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190418034115.75954-2-chao.wang@ucloud.cn
parent 28156d76

drivers/ras/cec.c

+2 −2
Original line number Diff line number Diff line
@@ -286,10 +286,10 @@ int cec_add_elem(u64 pfn) 
	if (!ce_arr.array || ce_arr.disabled)

		return -ENODEV;



	ca->ces_entered++;



	mutex_lock(&ce_mutex);



	ca->ces_entered++;



	if (ca->n == MAX_ELEMS)

		WARN_ON(!del_lru_elem_unlocked(ca));