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| author | Fabian Frederick <fabf@skynet.be> | 2014-11-14 19:49:58 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-20 09:11:29 +0100 |
| commit | 9f30b674759b9a2da25aefe25d885161d8a911cb (patch) | |
| tree | 3442f23ecb56782fa9869b9bb11137cb738bae98 | |
| parent | 1b33ef23946adee4b7d9d6b16b7285ce61063451 (diff) | |
| download | linux-stable-9f30b674759b9a2da25aefe25d885161d8a911cb.tar.gz linux-stable-9f30b674759b9a2da25aefe25d885161d8a911cb.tar.bz2 linux-stable-9f30b674759b9a2da25aefe25d885161d8a911cb.zip | |
bfa: replace 2 kzalloc/copy_from_user by memdup_user
This patch also removes unnecessary printk(KERN_INFO
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/scsi/bfa/bfad_debugfs.c | 30 |
1 files changed, 6 insertions, 24 deletions
diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c index 8e83d0474fe7..74a307c0a240 100644 --- a/drivers/scsi/bfa/bfad_debugfs.c +++ b/drivers/scsi/bfa/bfad_debugfs.c @@ -260,18 +260,9 @@ bfad_debugfs_write_regrd(struct file *file, const char __user *buf, unsigned long flags; void *kern_buf; - kern_buf = kzalloc(nbytes, GFP_KERNEL); - - if (!kern_buf) { - printk(KERN_INFO "bfad[%d]: Failed to allocate buffer\n", - bfad->inst_no); - return -ENOMEM; - } - - if (copy_from_user(kern_buf, (void __user *)buf, nbytes)) { - kfree(kern_buf); - return -ENOMEM; - } + kern_buf = memdup_user(buf, nbytes); + if (IS_ERR(kern_buf)) + return PTR_ERR(kern_buf); rc = sscanf(kern_buf, "%x:%x", &addr, &len); if (rc < 2) { @@ -336,18 +327,9 @@ bfad_debugfs_write_regwr(struct file *file, const char __user *buf, unsigned long flags; void *kern_buf; - kern_buf = kzalloc(nbytes, GFP_KERNEL); - - if (!kern_buf) { - printk(KERN_INFO "bfad[%d]: Failed to allocate buffer\n", - bfad->inst_no); - return -ENOMEM; - } - - if (copy_from_user(kern_buf, (void __user *)buf, nbytes)) { - kfree(kern_buf); - return -ENOMEM; - } + kern_buf = memdup_user(buf, nbytes); + if (IS_ERR(kern_buf)) + return PTR_ERR(kern_buf); rc = sscanf(kern_buf, "%x:%x", &addr, &val); if (rc < 2) { |