[MTD] m25p80.c mutex unlock fix
[MTD] m25p80.c mutex unlock fix

fix a mutex release bug in function m25p80_write.

Signed-off-by: Chen Gong <2624d285c49cdbe70fd88f18dc17e6286ba0c48e@freescale.com>
Signed-off-by: David Woodhouse <97b3379caa91f4ee97e44013ae4dc6350540fa9d@infradead.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs