korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 09:14:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

crypto: cavium - Replace mdelay with msleep in cpt_device_init

Browse Source 
cpt_device_init() is never called in atomic context.

The call chain ending up at cpt_device_init() is:
[1] cpt_device_init() <- cpt_probe()
cpt_probe() is only set as ".probe" in pci_driver structure
"cpt_pci_driver".

Despite never getting called from atomic context, cpt_device_init() calls
mdelay(100), i.e. busy wait for 100ms.
That is not necessary and can be replaced with msleep to
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jia-Ju Bai 2018-03-18 22:50:38 +08:00 committed by Herbert Xu
parent 0063ec4459
commit e9acf05255
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/crypto/cavium/cpt/cptpf_main.c
View File

@ -436,7 +436,7 @@ static int cpt_device_init(struct cpt_device *cpt)
/* Reset the PF when probed first */
cpt_reset(cpt);
mdelay(100);
msleep(100);
/*Check BIST status*/
bist = (u64)cpt_check_bist_status(cpt);