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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-07-02 18:01:31 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-07-02 18:01:31 +0200
commit27eb2c4b3d3e13f376a359e293c212a2e9407af5 (patch)
tree556aa7b5cd6eeb4214dec129c789515157187010 /arch/arm/mach-davinci/dma.c
parentInput: tps6507x-ts - convert to polled input device infrastructure (diff)
parentInput: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devices (diff)
downloadlinux-27eb2c4b3d3e13f376a359e293c212a2e9407af5.tar.xz
linux-27eb2c4b3d3e13f376a359e293c212a2e9407af5.zip
Merge branch 'next' into for-linus
Prepare first set of updates for 3.11 merge window.
Diffstat (limited to 'arch/arm/mach-davinci/dma.c')
-rw-r--r--arch/arm/mach-davinci/dma.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index a685e9706b7b..45b7c71d9cc1 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -743,6 +743,9 @@ EXPORT_SYMBOL(edma_free_channel);
*/
int edma_alloc_slot(unsigned ctlr, int slot)
{
+ if (!edma_cc[ctlr])
+ return -EINVAL;
+
if (slot >= 0)
slot = EDMA_CHAN_SLOT(slot);