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pstore/ram: Move initialization earlier

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Since only one single ramoops area allowed at a time, other probes
(like device tree) are meaningless, as it will waste CPU resources.
So let's check for being already initialized first.

Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Yue Hu 2019-01-23 16:56:48 +08:00 committed by Kees Cook
parent 4c6c4d3453
commit 1e0f67a96a
1 changed files with 9 additions and 9 deletions
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18
fs/pstore/ram.c
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@ -717,15 +717,6 @@ static int ramoops_probe(struct platform_device *pdev)
phys_addr_t paddr;
int err = -EINVAL;
if (dev_of_node(dev) && !pdata) {
pdata = &pdata_local;
memset(pdata, 0, sizeof(*pdata));
err = ramoops_parse_dt(pdev, pdata);
if (err < 0)
goto fail_out;
}
/*
* Only a single ramoops area allowed at a time, so fail extra
* probes.
@ -735,6 +726,15 @@ static int ramoops_probe(struct platform_device *pdev)
goto fail_out;
}
if (dev_of_node(dev) && !pdata) {
pdata = &pdata_local;
memset(pdata, 0, sizeof(*pdata));
err = ramoops_parse_dt(pdev, pdata);
if (err < 0)
goto fail_out;
}
/* Make sure we didn't get bogus platform data pointer. */
if (!pdata) {
pr_err("NULL platform data\n");