[PATCH] QE: Use GFP_ATOMIC under spin lock
weiyj_lk at 163.com
weiyj_lk at 163.com
Sat Feb 6 00:52:23 AEDT 2016
From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
The function cpm_muram_alloc_common() is called from several
places, in some of which, such as cpm_muram_alloc(), a lock is
held here, so we should use GFP_ATOMIC when a lock is held.
Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
---
drivers/soc/fsl/qe/qe_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
index 419fa5b..d774e54 100644
--- a/drivers/soc/fsl/qe/qe_common.c
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -194,7 +194,7 @@ unsigned long cpm_muram_alloc_common(unsigned long size, genpool_algo_t algo,
goto out2;
start = start - GENPOOL_OFFSET;
memset_io(cpm_muram_addr(start), 0, size);
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
if (!entry)
goto out1;
entry->start = start;
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