summaryrefslogtreecommitdiff
path: root/drivers/block/cciss.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/block/cciss.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/block/cciss.c')
-rw-r--r--drivers/block/cciss.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0422c4726..63c206468 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -514,14 +514,9 @@ cciss_proc_write(struct file *file, const char __user *buf,
if (!buf || length > PAGE_SIZE - 1)
return -EINVAL;
- buffer = (char *)__get_free_page(GFP_KERNEL);
- if (!buffer)
- return -ENOMEM;
-
- err = -EFAULT;
- if (copy_from_user(buffer, buf, length))
- goto out;
- buffer[length] = '\0';
+ buffer = memdup_user_nul(buf, length);
+ if (IS_ERR(buffer))
+ return PTR_ERR(buffer);
#ifdef CONFIG_CISS_SCSI_TAPE
if (strncmp(ENGAGE_SCSI, buffer, sizeof ENGAGE_SCSI - 1) == 0) {
@@ -537,8 +532,7 @@ cciss_proc_write(struct file *file, const char __user *buf,
/* might be nice to have "disengage" too, but it's not
safely possible. (only 1 module use count, lock issues.) */
-out:
- free_page((unsigned long)buffer);
+ kfree(buffer);
return err;
}
@@ -3854,7 +3848,7 @@ static void print_cfg_table(ctlr_info_t *h)
readl(&(tb->HostWrite.CoalIntDelay)));
dev_dbg(&h->pdev->dev, " Coalesce Interrupt Count = 0x%x\n",
readl(&(tb->HostWrite.CoalIntCount)));
- dev_dbg(&h->pdev->dev, " Max outstanding commands = 0x%d\n",
+ dev_dbg(&h->pdev->dev, " Max outstanding commands = 0x%x\n",
readl(&(tb->CmdsOutMax)));
dev_dbg(&h->pdev->dev, " Bus Types = 0x%x\n",
readl(&(tb->BusTypes)));