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authorJia-Ju Bai <baijiaju1990@gmail.com>2018-03-18 22:50:38 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-03-23 23:48:43 +0800
commite9acf05255cbf72dc32169957d2895cbfd12c7e1 (patch)
treef7c9d3819a06687a939b4578882e6247d0fcc726 /drivers/crypto
parent0063ec4459dcf1583c7aa84ada0f7125450d9245 (diff)
crypto: cavium - Replace mdelay with msleep in cpt_device_init
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>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/cavium/cpt/cptpf_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/cavium/cpt/cptpf_main.c b/drivers/crypto/cavium/cpt/cptpf_main.c
index 34a6d8bf229e..06ad85ab5e86 100644
--- a/drivers/crypto/cavium/cpt/cptpf_main.c
+++ b/drivers/crypto/cavium/cpt/cptpf_main.c
@@ -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);