Sashiko reported that:
kernel_read_file_from_path() returns negative error for zero-sized
files, so we cannot have "sz == 0" return, remove it and use a
generic error message instead.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
 drivers/block/zram/zram_drv.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index a9b3bb1d3bef..809284aee124 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1717,11 +1717,6 @@ static int comp_params_store(struct zram *zram, u32 prio, s32 level,
 			       dict_path, sz);
 			return sz;
 		}
-		if (sz == 0) {
-			pr_err("failed to load dictionary %s (empty file)\n",
-			       dict_path);
-			return -EINVAL;
-		}
 	}
 
 	zram->params[prio].dict_sz = sz;
-- 
2.55.0.897.gb25b4bd76c-goog