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authorAlex Elder <[email protected]>2020-02-28 12:33:59 -0600
committerBjorn Andersson <[email protected]>2020-03-25 22:29:44 -0700
commit1f2f65c41034accf9baf684c0dae756b56fac19f (patch)
treea0ca7d43daf580e38078089d02aac116042f9790
parente138cce3e3736ef0a2772fb963f01c1bafb29c71 (diff)
remoteproc: return error for bad "recovery" debugfs input
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Andersson <[email protected]>
-rw-r--r--drivers/remoteproc/remoteproc_debugfs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index b87565a13eb1..d734cadb16e3 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;