1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 9d30809bb407..916af5096f57 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -156,7 +156,7 @@ rproc_recovery_write(struct file *filp, const char __user *user_buf,
         char buf[10];
         int ret;
 
-        if (count > sizeof(buf))
+        if (count < 1 || count > sizeof(buf))
                 return count;
 
         ret = copy_from_user(buf, user_buf, count);