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[3.19.y-ckt,037/102] i2c: s3c2410: fix oops in suspend callback for non-dt platforms

Message ID 1436293412-9033-38-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa July 7, 2015, 6:22 p.m. UTC 
3.19.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Khoruzhick <anarsoul@gmail.com>

commit 8d487a43c36b54a029d74ad3b0a6a9d1253e728a upstream.

Initialize sysreg by default, otherwise driver will crash in suspend
callback when not using DT.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: a7750c3ef01223 ("i2c: s3c2410: Handle i2c sys_cfg register in i2c driver")
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/i2c/busses/i2c-s3c2410.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 958c8db..297e9c9 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1143,6 +1143,7 @@  static int s3c24xx_i2c_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	i2c->quirks = s3c24xx_get_device_quirks(pdev);
+	i2c->sysreg = ERR_PTR(-ENOENT);
 	if (pdata)
 		memcpy(i2c->pdata, pdata, sizeof(*pdata));
 	else