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mptfusion: fix msgContext in mptctl_hp_hostinfo

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Hi,

without this patch the istwiRWRequest->MsgContext is always set to zero,
this patch saves the MsgContext in a msgcontext variable and then restores
the value.
Thanks to  David Jeffery who found the issue and did the analysis.

Signed-off-by: Tomas Henzl <[email protected]>
Acked-by: Desai, Kashyap <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Tomas Henzl 2014-05-28 18:04:20 +02:00 • committed by Christoph Hellwig
commit 73d02c200b
1 changed files with 3 additions and 3 deletions
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6
drivers/message/fusion/mptctl.c
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@ -2432,9 +2432,9 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
int rc, cim_rev;
ToolboxIstwiReadWriteRequest_t *IstwiRWRequest;
MPT_FRAME_HDR *mf = NULL;
MPIHeader_t *mpi_hdr;
unsigned long timeleft;
int retval;
u32 msgcontext;
/* Reset long to int. Should affect IA64 and SPARC only
*/
@ -2581,11 +2581,11 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
}
IstwiRWRequest = (ToolboxIstwiReadWriteRequest_t *)mf;
mpi_hdr = (MPIHeader_t *) mf;
msgcontext = IstwiRWRequest->MsgContext;
memset(IstwiRWRequest,0,sizeof(ToolboxIstwiReadWriteRequest_t));
IstwiRWRequest->MsgContext = msgcontext;
IstwiRWRequest->Function = MPI_FUNCTION_TOOLBOX;
IstwiRWRequest->Tool = MPI_TOOLBOX_ISTWI_READ_WRITE_TOOL;
IstwiRWRequest->MsgContext = mpi_hdr->MsgContext;
IstwiRWRequest->Flags = MPI_TB_ISTWI_FLAGS_READ;
IstwiRWRequest->NumAddressBytes = 0x01;
IstwiRWRequest->DataLength = cpu_to_le16(0x04);