From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sat, 28 Jan 2017 08:32:50 +0000 (+0100)
Subject: mmc: core: fix error path in mmc_host_alloc
X-Git-Tag: v4.11-rc1~140^2~41
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=1ed2171944888cf6787990a0f6387b717ba72e24;p=linux.git

mmc: core: fix error path in mmc_host_alloc

Properly reverse everything if mmc_gpio_alloc(host) fails.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 170881854975..3f8c85d5aa09 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -371,6 +371,8 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 
 	if (mmc_gpio_alloc(host)) {
 		put_device(&host->class_dev);
+		ida_simple_remove(&mmc_host_ida, host->index);
+		kfree(host);
 		return NULL;
 	}