From 4518274606d1fae701fc20912c0d24361c9e88cb Mon Sep 17 00:00:00 2001 From: =?utf8?q?Krzysztof=20Ha=C5=82asa?= Date: Thu, 12 Sep 2013 08:25:36 -0300 Subject: [PATCH] [media] SOLO6x10: don't do DMA from stack in solo_dma_vin_region() [m.chehab@samsung.com: Fix CodingStyle: don't use 2 statements on just one line] Signed-off-by: Krzysztof Ha?asa Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../staging/media/solo6x10/solo6x10-disp.c | 25 +++++++++++++------ 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/staging/media/solo6x10/solo6x10-disp.c b/drivers/staging/media/solo6x10/solo6x10-disp.c index 32d9953bc36e..145295a5db72 100644 --- a/drivers/staging/media/solo6x10/solo6x10-disp.c +++ b/drivers/staging/media/solo6x10/solo6x10-disp.c @@ -176,18 +176,27 @@ static void solo_vout_config(struct solo_dev *solo_dev) static int solo_dma_vin_region(struct solo_dev *solo_dev, u32 off, u16 val, int reg_size) { - u16 buf[64]; - int i; - int ret = 0; + u16 *buf; + const int n = 64, size = n * sizeof(*buf); + int i, ret = 0; + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; - for (i = 0; i < sizeof(buf) >> 1; i++) + for (i = 0; i < n; i++) buf[i] = cpu_to_le16(val); - for (i = 0; i < reg_size; i += sizeof(buf)) - ret |= solo_p2m_dma(solo_dev, 1, buf, - SOLO_MOTION_EXT_ADDR(solo_dev) + off + i, - sizeof(buf), 0, 0); + for (i = 0; i < reg_size; i += size) { + ret = solo_p2m_dma(solo_dev, 1, buf, + SOLO_MOTION_EXT_ADDR(solo_dev) + off + i, + size, 0, 0); + + if (ret) + break; + } + kfree(buf); return ret; } -- 2.20.1