coccinelle reports a warning

WARNING: casting value returned by memory allocation function
to (struct mpi3mr_throttle_group_info *) is useless

To fix this the useless cast is removed.

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
---
 drivers/scsi/mpi3mr/mpi3mr_fw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 0866dfd43318..ee3c695ece9a 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -3795,8 +3795,7 @@ int mpi3mr_init_ioc(struct mpi3mr_ioc *mrioc)
 	if (!mrioc->throttle_groups && mrioc->num_io_throttle_group) {
 		dprint_init(mrioc, "allocating memory for throttle groups\n");
 		sz = sizeof(struct mpi3mr_throttle_group_info);
-		mrioc->throttle_groups = (struct mpi3mr_throttle_group_info *)
-		    kcalloc(mrioc->num_io_throttle_group, sz, GFP_KERNEL);
+		mrioc->throttle_groups = kcalloc(mrioc->num_io_throttle_group, sz, GFP_KERNEL);
 		if (!mrioc->throttle_groups)
 			goto out_failed_noretry;
 	}
-- 
2.35.1