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usb: gadget: rndis: use signed type for a signed value

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rndis_get_nr() returns either a non-negative value on success
or a negative value on failure. In case of failure an error code
is returned to the caller of rndis_register().
If the "i" is unsigned, the information about error from rndis_get_nr()
is lost. If there is no error but rndis_get_nr() returns a value greater
than 256 the least significant bits of i are zero effectively limiting the
number of configs to 256.

This patch fixes that.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz
2015-05-18 17:40:04 +02:00
committed by Felipe Balbi
parent c0d96af2e0
commit 81dff86928
2 changed files with 3 additions and 3 deletions
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2
drivers/usb/gadget/function/rndis.h
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@@ -177,7 +177,7 @@ typedef struct rndis_resp_t
typedef struct rndis_params
{
u8 confignr;
int confignr;
u8 used;
u16 saved_filter;
enum rndis_state state;