zram-panic-when-use-ext4-over-zram-fix

simplify zram_write_page() -ENOMEM return

Link: https://lkml.kernel.org/r/20241210093835.GN16709@google.com
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: caiqingfu <caiqingfu@ruijie.com.cn>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/block/zram/zram_drv.c

@@ -1668,7 +1668,7 @@ static int zram_write_page(struct zram *zram, struct page *page, u32 index)
 
 	if (last_comp_len && (last_comp_len != comp_len)) {
 		zs_free(zram->mem_pool, handle);
-		handle = (unsigned long)ERR_PTR(-ENOMEM);
+		handle = -ENOMEM;
 	}
 	/*
 	 * handle allocation has 2 paths: