53 lines
1.4 KiB
Diff
53 lines
1.4 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 30 Jan 2017 16:09:51 +0100
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Subject: [PATCH] brcmfmac: check brcmf_bus_get_memdump result for error
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This method may be unsupported (see: USB bus) or may just fail (see:
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SDIO bus).
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While at it rework logic in brcmf_sdio_bus_get_memdump function to avoid
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too many conditional code nesting levels.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
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@@ -32,16 +32,25 @@ static int brcmf_debug_create_memdump(st
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{
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void *dump;
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size_t ramsize;
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+ int err;
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ramsize = brcmf_bus_get_ramsize(bus);
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- if (ramsize) {
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- dump = vzalloc(len + ramsize);
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- if (!dump)
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- return -ENOMEM;
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- memcpy(dump, data, len);
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- brcmf_bus_get_memdump(bus, dump + len, ramsize);
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- dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
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+ if (!ramsize)
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+ return -ENOTSUPP;
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+
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+ dump = vzalloc(len + ramsize);
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+ if (!dump)
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+ return -ENOMEM;
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+
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+ memcpy(dump, data, len);
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+ err = brcmf_bus_get_memdump(bus, dump + len, ramsize);
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+ if (err) {
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+ vfree(dump);
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+ return err;
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}
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+
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+ dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
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+
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return 0;
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}
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