linux-kernel - [PATCHv4 9/9] zram: Use IS_ERR_VALUE() to check for zs

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Date:   Tue, 18 Oct 2022 13:55:33 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Minchan Kim <minchan@...nel.org>
Cc:     Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCHv4 9/9] zram: Use IS_ERR_VALUE() to check for zs_malloc() errors

Avoid type casts that are needed for IS_ERR() and use
IS_ERR_VALUE() instead.

Suggested-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 drivers/block/zram/zram_drv.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 6b56f6f2ce82..422e3cfd2ddc 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1506,19 +1506,19 @@ static int __zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
 	 * if we have a 'non-null' handle here then we are coming
 	 * from the slow path and handle has already been allocated.
 	 */
-	if (IS_ERR((void *)handle))
+	if (IS_ERR_VALUE(handle))
 		handle = zs_malloc(zram->mem_pool, comp_len,
 				__GFP_KSWAPD_RECLAIM |
 				__GFP_NOWARN |
 				__GFP_HIGHMEM |
 				__GFP_MOVABLE);
-	if (IS_ERR((void *)handle)) {
+	if (IS_ERR_VALUE(handle)) {
 		zcomp_stream_put(zram->comps[ZRAM_PRIMARY_ZCOMP]);
 		atomic64_inc(&zram->stats.writestall);
 		handle = zs_malloc(zram->mem_pool, comp_len,
 				GFP_NOIO | __GFP_HIGHMEM |
 				__GFP_MOVABLE);
-		if (IS_ERR((void *)handle))
+		if (IS_ERR_VALUE(handle))
 			return PTR_ERR((void *)handle);
 
 		if (comp_len != PAGE_SIZE)
@@ -1685,7 +1685,7 @@ static int zram_recompress(struct zram *zram, u32 index, struct page *page,
 				__GFP_NOWARN |
 				__GFP_HIGHMEM |
 				__GFP_MOVABLE);
-	if (IS_ERR((void *)handle_next)) {
+	if (IS_ERR_VALUE(handle_next)) {
 		zcomp_stream_put(zram->comps[ZRAM_SECONDARY_ZCOMP]);
 		return PTR_ERR((void *)handle_next);
 	}
-- 
2.38.0.413.g74048e4d9e-goog