KERNEL_VERSION: 2.6.31 DESCRIBE: In driver ./drivers/media/radio/radio-gemtek-pci.c mutex_lock is called first time in line 184, then in line 186 gemtek_pci_setfrequency is called. 182 static void gemtek_pci_unmute(struct gemtek_pci *card) 183 { 184 mutex_lock(&card->lock); 185 if (card->mute) { 186 gemtek_pci_setfrequency(card, card->current_frequency); 187 card->mute = false; 188 } 189 mutex_unlock(&card->lock);190 } In gemtek_pci_setfrequency we call mutex_lock again in line 152 144 static void gemtek_pci_setfrequency(struct gemtek_pci *card, unsigned long frequency) 145 { 146 int i; 147 u32 value = frequency / 200 + 856; 148 u16 mask = 0x8000; 149 u8 last_byte; 150 u32 port = card->iobase; 151 152 mutex_lock(&card->lock); Found by : Linux Driver Verification project -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html