drivers/scsi/megaraid/megaraid_sas_fusion.c:331:20-27: WARNING: kzalloc should be used for fusion -> cmd_list, instead of kmalloc/memset
drivers/scsi/megaraid/megaraid_sas_fusion.c:342:24-31: WARNING: kzalloc should be used for fusion -> cmd_list [ i ], instead of kmalloc/memset
Use kzalloc rather than kmalloc followed by memset with 0
This considers some simple cases that are common and easy to validate
Note in particular that there are no ...s in the rule, so all of the
matched code has to be contiguous
Generated by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
CC: Sumit Saxena <sumit.saxena@xxxxxxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
megaraid_sas_fusion.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -328,25 +328,22 @@ megasas_alloc_cmdlist_fusion(struct mega
* Allocate the dynamic array first and then allocate individual
* commands.
*/
- fusion->cmd_list = kmalloc(sizeof(struct megasas_cmd_fusion *) * max_cmd,
- GFP_KERNEL);
+ fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *) * max_cmd,
+ GFP_KERNEL);
if (!fusion->cmd_list) {
dev_err(&instance->pdev->dev,
"Failed from %s %d\n", __func__, __LINE__);
return -ENOMEM;
}
- memset(fusion->cmd_list, 0,
- sizeof(struct megasas_cmd_fusion *) * max_cmd);
for (i = 0; i < max_cmd; i++) {
- fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
+ fusion->cmd_list[i] = kzalloc(sizeof(struct megasas_cmd_fusion),
GFP_KERNEL);
if (!fusion->cmd_list[i]) {
dev_err(&instance->pdev->dev,
"Failed from %s %d\n", __func__, __LINE__);
return -ENOMEM;
}
- memset(fusion->cmd_list[i], 0, sizeof(struct megasas_cmd_fusion));
}
return 0;
}
--
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