brcm2708: update to latest patches from RPi foundation

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0402-staging-bcm2835-audio-don-t-initialize-memory-twice.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0402-staging-bcm2835-audio-don-t-initialize-memory-twice.patch b/target/linux/brcm2708/patches-4.19/950-0402-staging-bcm2835-audio-don-t-initialize-memory-twice.patch
new file mode 100644 (file)
index 0000000..f5c7781
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0402-staging-bcm2835-audio-don-t-initialize-memory-twice.patch
@@ -0,0 +1,30 @@
+From 7250c9d3d3f1b861d8f0c6220a81a465e45d70eb Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Wed, 17 Oct 2018 21:01:51 +0200
+Subject: [PATCH] staging: bcm2835-audio: don't initialize memory twice
+
+commit 2e5f59fb77397cab3bc3d156e8be4164a67d32ef upstream.
+
+The memory is being allocated with devres_alloc(), wich ultimately uses
+__GFP_ZERO to call kmalloc. We don't need to zero the memory area again
+in bcm2835-audio.
+
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Reviewed-by: Takashi Iwai <tiwai@suse.de>
+Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -39,8 +39,6 @@ static int bcm2835_devm_add_vchi_ctx(str
+       if (!vchi_ctx)
+               return -ENOMEM;
+ 
+-      memset(vchi_ctx, 0, sizeof(*vchi_ctx));
+-
+       ret = bcm2835_new_vchi_ctx(dev, vchi_ctx);
+       if (ret) {
+               devres_free(vchi_ctx);