brcm2708: update to latest patches from RPi foundation

[openwrt/staging/wigyori.git] / target / linux / brcm2708 / patches-4.19 / 950-0333-bcm2835-mmc-Handle-mmc_add_host-errors.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0333-bcm2835-mmc-Handle-mmc_add_host-errors.patch b/target/linux/brcm2708/patches-4.19/950-0333-bcm2835-mmc-Handle-mmc_add_host-errors.patch
new file mode 100644 (file)
index 0000000..3762f4b
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0333-bcm2835-mmc-Handle-mmc_add_host-errors.patch
@@ -0,0 +1,35 @@
+From 2e2f57e09e1ace18ae01a87d9fc4378c96c54370 Mon Sep 17 00:00:00 2001
+From: Lukas Wunner <lukas@wunner.de>
+Date: Tue, 22 Jan 2019 12:29:45 +0100
+Subject: [PATCH] bcm2835-mmc: Handle mmc_add_host() errors
+
+The BCM2835 MMC host driver calls mmc_add_host() but doesn't check its
+return value.  Errors occurring in that function are therefore not
+handled.  Fix it.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+---
+ drivers/mmc/host/bcm2835-mmc.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+--- a/drivers/mmc/host/bcm2835-mmc.c
++++ b/drivers/mmc/host/bcm2835-mmc.c
+@@ -1398,10 +1398,16 @@ static int bcm2835_mmc_add_host(struct b
+       }
+ 
+       mmiowb();
+-      mmc_add_host(mmc);
++      ret = mmc_add_host(mmc);
++      if (ret) {
++              dev_err(dev, "could not add MMC host\n");
++              goto free_irq;
++      }
+ 
+       return 0;
+ 
++free_irq:
++      free_irq(host->irq, host);
+ untasklet:
+       tasklet_kill(&host->finish_tasklet);
+