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usb: gadget: dfu: discard dead code

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Reported by Coverity:
Logically dead code (DEADCODE)
dead_error_line: Execution cannot reach this statement:
(f_dfu->strings + --i).s = ....

If calloc failed, i is still 0 and no need to call free,
so discard the dead code.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: "Łukasz Majewski" <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
This commit is contained in:
Peng Fan 2016-05-03 10:25:22 +08:00 • committed by Marek Vasut
parent 5d8fae7916
commit 12ff19dbfd
1 changed files with 1 additions and 9 deletions
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10
drivers/usb/gadget/f_dfu.c
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@ -636,7 +636,7 @@ dfu_prepare_strings(struct f_dfu *f_dfu, int n)
f_dfu->strings = calloc(sizeof(struct usb_string), n + 1);
if (!f_dfu->strings)
goto enomem;
return -ENOMEM;
for (i = 0; i < n; ++i) {
de = dfu_get_entity(i);
@ -647,14 +647,6 @@ dfu_prepare_strings(struct f_dfu *f_dfu, int n)
f_dfu->strings[i].s = NULL;
return 0;
enomem:
while (i)
f_dfu->strings[--i].s = NULL;
free(f_dfu->strings);
return -ENOMEM;
}
static int dfu_prepare_function(struct f_dfu *f_dfu, int n)