diff mbox series

[4/4] remoteproc: return error for bad "recovery" debugfs input

Message ID 20200228183359.16229-5-elder@linaro.org
State New
Headers show
Series [1/4] remoteproc: re-check state in rproc_trigger_recovery() | expand

Commit Message

Alex Elder Feb. 28, 2020, 6:33 p.m. UTC 
If the value written to the "recovery" debugfs file is not one of
the recognized commands return an error to indicate it's invalid.

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/remoteproc/remoteproc_debugfs.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index e995dc49c231..0d478bfefd9c 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -146,6 +146,8 @@  rproc_recovery_write(struct file *filp, const char __user *user_buf,
 	} else if (!strncmp(buf, "recover", count)) {
 		/* begin the recovery process without changing the flag */
 		rproc_trigger_recovery(rproc);
+	} else {
+		return -EINVAL;
 	}
 
 	return count;