X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0421-staging-bcm2835-audio-don-t-initialize-memory-twice.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0421-staging-bcm2835-audio-don-t-initialize-memory-twice.patch;h=f5c7781c2052b64a8afc5c503eb6bd1bc68cd651;hb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;hp=0000000000000000000000000000000000000000;hpb=47a93a810f78adce5a130d287f82b28e9b54313c;p=openwrt%2Fopenwrt.git

diff --git a/target/linux/brcm2708/patches-4.19/950-0421-staging-bcm2835-audio-don-t-initialize-memory-twice.patch b/target/linux/brcm2708/patches-4.19/950-0421-staging-bcm2835-audio-don-t-initialize-memory-twice.patch
new file mode 100644
index 0000000000..f5c7781c20
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0421-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);