From: Rafał Miłecki <rafal@xxxxxxxxxx>
[ Upstream commit f4737a62033d7f3e0db740c449fc62119da7ab8a ]
This method may be unsupported (see: USB bus) or may just fail (see:
SDIO bus).
While at it rework logic in brcmf_sdio_bus_get_memdump function to avoid
too many conditional code nesting levels.
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
Acked-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
.../wireless/broadcom/brcm80211/brcmfmac/debug.c | 23 +++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
index e64557c35553..6f8a4b074c31 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
@@ -32,16 +32,25 @@ static int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
{
void *dump;
size_t ramsize;
+ int err;
ramsize = brcmf_bus_get_ramsize(bus);
- if (ramsize) {
- dump = vzalloc(len + ramsize);
- if (!dump)
- return -ENOMEM;
- memcpy(dump, data, len);
- brcmf_bus_get_memdump(bus, dump + len, ramsize);
- dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
+ if (!ramsize)
+ return -ENOTSUPP;
+
+ dump = vzalloc(len + ramsize);
+ if (!dump)
+ return -ENOMEM;
+
+ memcpy(dump, data, len);
+ err = brcmf_bus_get_memdump(bus, dump + len, ramsize);
+ if (err) {
+ vfree(dump);
+ return err;
}
+
+ dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
+
return 0;
}
--
2.11.0