#include #include #include "privs.h" #include "die.h" void drop_privileges(bool enforce, uid_t uid, gid_t gid) { if (enforce) { if (uid == getuid()) panic("Uid cannot be the same as the current user!\n"); if (gid == getgid()) panic("Gid cannot be the same as the current user!\n"); } if (setgid(gid) != 0) panic("Unable to drop group privileges: %s!\n", strerror(errno)); if (setuid(uid) != 0) panic("Unable to drop user privileges: %s!\n", strerror(errno)); }
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /sound/soc/zte/Kconfig
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'sound/soc/zte/Kconfig')