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path: root/drivers/mmc/card/mmc_test.c
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Diffstat (limited to 'drivers/mmc/card/mmc_test.c')
-rw-r--r--drivers/mmc/card/mmc_test.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index a69df5216274..0c0fc52d42c5 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2849,18 +2849,12 @@ static ssize_t mtf_test_write(struct file *file, const char __user *buf,
struct seq_file *sf = (struct seq_file *)file->private_data;
struct mmc_card *card = (struct mmc_card *)sf->private;
struct mmc_test_card *test;
- char lbuf[12];
long testcase;
+ int ret;
- if (count >= sizeof(lbuf))
- return -EINVAL;
-
- if (copy_from_user(lbuf, buf, count))
- return -EFAULT;
- lbuf[count] = '\0';
-
- if (strict_strtol(lbuf, 10, &testcase))
- return -EINVAL;
+ ret = kstrtol_from_user(buf, count, 10, &testcase);
+ if (ret)
+ return ret;
test = kzalloc(sizeof(struct mmc_test_card), GFP_KERNEL);
if (!test)