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staging: unisys: dereferencing NULL pointer

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we can reach the label Away in total five situation and in four of
of them pDevInfo is NULL. so we were basically dereferencing a NULL
pointer.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2014-11-07 17:48:35 +05:30 committed by Greg Kroah-Hartman
parent f9b64692e1
commit 930a021f2e
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/unisys/visorchipset/visorchipset_main.c
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@ -1298,7 +1298,8 @@ my_device_create(struct controlvm_message *inmsg)
POSTCODE_SEVERITY_INFO);
Away:
/* get the bus and devNo for DiagPool channel */
if (is_diagpool_channel(pDevInfo->chan_info.channel_type_uuid)) {
if (pDevInfo &&
is_diagpool_channel(pDevInfo->chan_info.channel_type_uuid)) {
g_diagpoolBusNo = busNo;
g_diagpoolDevNo = devNo;
LOGINF("CONTROLVM_DEVICE_CREATE for DiagPool channel: busNo=%lu, devNo=%lu",