FROMLIST: pstore-ram: fix NULL reference when used with pdata

When using platform-data (not DT), we get an OOPS, because drvdata is
only initialized after we try to use it.

This addresses my comments made on the upstream submission here:

https://patchwork.kernel.org/patch/7980651/

Fixes boot on Chrome OS systems, including the Pixel 2.

Change-Id: I97360edf2ce61c83dc543cb6c169f3287e2dae4b
Fixes: b1d1b7187c ("FROMLIST: pstore-ram: add Device Tree bindings")
Signed-off-by: Brian Norris <briannorris@google.com>
This commit is contained in:
Brian Norris 2016-03-14 13:34:44 -07:00 committed by Amit Pundir
parent 3e04d6dfbc
commit 772d83a929

View file

@ -554,7 +554,7 @@ static int ramoops_parse_dt(struct platform_device *pdev,
static int ramoops_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ramoops_platform_data *pdata = platform_get_drvdata(pdev);
struct ramoops_platform_data *pdata = pdev->dev.platform_data;
struct ramoops_context *cxt = &oops_cxt;
size_t dump_mem_sz;
phys_addr_t paddr;
@ -666,7 +666,6 @@ static int ramoops_probe(struct platform_device *pdev)
cxt->size, (unsigned long long)cxt->phys_addr,
cxt->ecc_info.ecc_size, cxt->ecc_info.block_size);
platform_set_drvdata(pdev, pdata);
return 0;
fail_buf: