mxcmmc: fix error path in mxcmci_probe
After a failing allocation of mmc or a failed ioremap in mxcmci_probe host was
used uninitialized.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Martin Fuzzey <mfuzzey@gmail.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 8867152..60a2b69 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -679,17 +679,17 @@
{
struct mmc_host *mmc;
struct mxcmci_host *host = NULL;
- struct resource *r;
+ struct resource *iores, *r;
int ret = 0, irq;
printk(KERN_INFO "i.MX SDHC driver\n");
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (!r || irq < 0)
+ if (!iores || irq < 0)
return -EINVAL;
- r = request_mem_region(r->start, resource_size(r), pdev->name);
+ r = request_mem_region(iores->start, resource_size(iores), pdev->name);
if (!r)
return -EBUSY;
@@ -809,7 +809,7 @@
out_free:
mmc_free_host(mmc);
out_release_mem:
- release_mem_region(host->res->start, resource_size(host->res));
+ release_mem_region(iores->start, resource_size(iores));
return ret;
}
