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mtd/sm_ftl.c: fix wrong do_div() usage

Message ID alpine.LFD.2.20.1511041519320.630@knanqh.ubzr
State Accepted
Commit 2b2462d5928379b8f43ffe19d72d069bfb89d316
Headers show

Commit Message

Nicolas Pitre Nov. 4, 2015, 8:21 p.m. UTC
do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>

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diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index c23184a47f..b096f8bb05 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -206,9 +206,10 @@  static loff_t sm_mkoffset(struct sm_ftl *ftl, int zone, int block, int boffset)
 /* Breaks offset into parts */
-static void sm_break_offset(struct sm_ftl *ftl, loff_t offset,
+static void sm_break_offset(struct sm_ftl *ftl, loff_t loffset,
 			    int *zone, int *block, int *boffset)
+	u64 offset = loffset;
 	*boffset = do_div(offset, ftl->block_size);
 	*block = do_div(offset, ftl->max_lba);
 	*zone = offset >= ftl->zone_count ? -1 : offset;