From: Todd Poynor <toddpoynor@google.com>
Date: Tue, 17 Jul 2018 20:56:54 +0000 (-0700)
Subject: staging: gasket: bail out of reset sequence on device callback error
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=45042402ae97682b965d88f2393f317f48bb0042;p=openwrt%2Fstaging%2Fblogic.git

staging: gasket: bail out of reset sequence on device callback error

If device reset callback returns an error, error out at the gasket
level.

Reported-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 94e64b900380..bc3662eafb63 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1875,9 +1875,11 @@ int gasket_reset_nolock(struct gasket_dev *gasket_dev, uint reset_type)
 
 	/* Perform a device reset of the requested type. */
 	ret = driver_desc->device_reset_cb(gasket_dev, reset_type);
-	if (ret)
+	if (ret) {
 		gasket_log_error(
 			gasket_dev, "Device reset cb returned %d.", ret);
+		return ret;
+	}
 
 	/* Reinitialize the page tables and interrupt framework. */
 	for (i = 0; i < driver_desc->num_page_tables; ++i)