linux-kernel - [PATCH 1/2] gma500: Add proper use of the variable ret for the function, psb_mmu_inset_pfn

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Date:	Mon,  4 Apr 2016 22:32:36 -0400
From:	Bastien Philbert <bastienphilbert@...il.com>
To:	patrik.r.jakobsson@...il.com
Cc:	airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] gma500: Add proper use of the variable ret for the function, psb_mmu_inset_pfn_sequence

This adds proper use of the variable ret by returning it
at the end of the function, psb_mmu_inset_pfn_sequence for
indicating to callers when an error has occurred. Further
more remove the unneeded double setting of ret to the error
code, -ENOMEM after checking if a call to the function,

Signed-off-by: Bastien Philbert <bastienphilbert@...il.com>
---
 drivers/gpu/drm/gma500/mmu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/gma500/mmu.c b/drivers/gpu/drm/gma500/mmu.c
index 0eaf11c..b832397 100644
--- a/drivers/gpu/drm/gma500/mmu.c
+++ b/drivers/gpu/drm/gma500/mmu.c
@@ -677,10 +677,9 @@ int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd, uint32_t start_pfn,
 	do {
 		next = psb_pd_addr_end(addr, end);
 		pt = psb_mmu_pt_alloc_map_lock(pd, addr);
-		if (!pt) {
-			ret = -ENOMEM;
+		if (!pt)
 			goto out;
-		}
+
 		do {
 			pte = psb_mmu_mask_pte(start_pfn++, type);
 			psb_mmu_set_pte(pt, addr, pte);
-- 
2.5.0