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Staging: lustre: Use memdup_user rather than duplicating its implementation

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This patch uses memdup_user rather than duplicating its implementation

Signed-off-by: Abdul Hussain <habdul@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abdul Hussain
2015-06-16 07:04:51 +00:00
committed by Greg Kroah-Hartman
parent d46bc00c3f
commit 0c027bc378
1 changed files with 6 additions and 16 deletions
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22
drivers/staging/lustre/lustre/llite/file.c
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@@ -2361,14 +2361,9 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
struct hsm_state_set *hss;
int rc;
hss = kzalloc(sizeof(*hss), GFP_NOFS);
if (!hss)
return -ENOMEM;
if (copy_from_user(hss, (char *)arg, sizeof(*hss))) {
kfree(hss);
return -EFAULT;
}
hss = memdup_user((char *)arg, sizeof(*hss));
if (IS_ERR(hss))
return PTR_ERR(hss);
rc = ll_hsm_state_set(inode, hss);
@@ -2488,14 +2483,9 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case LL_IOC_HSM_IMPORT: {
struct hsm_user_import *hui;
hui = kzalloc(sizeof(*hui), GFP_NOFS);
if (!hui)
return -ENOMEM;
if (copy_from_user(hui, (void *)arg, sizeof(*hui))) {
kfree(hui);
return -EFAULT;
}
hui = memdup_user((void *)arg, sizeof(*hui));
if (IS_ERR(hui))
return PTR_ERR(hui);
rc = ll_hsm_import(inode, file, hui);