mptfusion: fix msgContext in mptctl_hp_hostinfo
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 <thenzl@redhat.com>
Acked-by: Desai, Kashyap <Kashyap.Desai@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index dcc8385..8a050e8 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -2432,9 +2432,9 @@
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 @@
}
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);