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hpet: Make cmd parameter of hpet_ioctl_common() unsigned

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The value passed by the two callers of the function is unsigned anyway.

Making the parameter unsigned fixes the following warning when building
with clang:

drivers/char/hpet.c:588:7: error: overflow converting case value to switch condition type (2149083139 to 18446744071563667459) [-Werror,-Wswitch]
        case HPET_INFO:
             ^
include/uapi/linux/hpet.h:18:19: note: expanded from macro 'HPET_INFO'
                        ^
include/uapi/asm-generic/ioctl.h:77:28: note: expanded from macro '_IOR'
                                ^
include/uapi/asm-generic/ioctl.h:66:2: note: expanded from macro '_IOC'
        (((dir)  << _IOC_DIRSHIFT) | \

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthias Kaehlcke 2017-03-13 11:57:25 -07:00 committed by Greg Kroah-Hartman
parent 6c4e976785
commit 5cd5e6ad0e
1 changed files with 1 additions and 1 deletions
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2
drivers/char/hpet.c
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@ -575,7 +575,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
}
static int
hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
struct hpet_info *info)
{
struct hpet_timer __iomem *timer;