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Diffstat (limited to 'arch/powerpc/platforms/pseries/reconfig.c')
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index e5bf1e84047f..296c188fd5ca 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
of_detach_node(np);
of_node_put(parent);
- of_node_put(np); /* Must decrement the refcount */
return 0;
}
@@ -363,20 +362,13 @@ static int do_update_property(char *buf, size_t bufsize)
static ssize_t ofdt_write(struct file *file, const char __user *buf, size_t count,
loff_t *off)
{
- int rv = 0;
+ int rv;
char *kbuf;
char *tmp;
- if (!(kbuf = kmalloc(count + 1, GFP_KERNEL))) {
- rv = -ENOMEM;
- goto out;
- }
- if (copy_from_user(kbuf, buf, count)) {
- rv = -EFAULT;
- goto out;
- }
-
- kbuf[count] = '\0';
+ kbuf = memdup_user_nul(buf, count);
+ if (IS_ERR(kbuf))
+ return PTR_ERR(kbuf);
tmp = strchr(kbuf, ' ');
if (!tmp) {