leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

firewire: fw-ohci: dma_free_coherent needs IRQs enabled

Browse Source 
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2007-07-25 19:18:08 +02:00
parent 25659f7183
commit 4eaff7d630
1 changed files with 13 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/firewire/fw-ohci.c
View File

@ -907,6 +907,8 @@ static void bus_reset_tasklet(unsigned long data)
int self_id_count, i, j, reg;
int generation, new_generation;
unsigned long flags;
void *free_rom = NULL;
dma_addr_t free_rom_bus = 0;
reg = reg_read(ohci, OHCI1394_NodeID);
if (!(reg & OHCI1394_NodeID_idValid)) {
@ -970,8 +972,8 @@ static void bus_reset_tasklet(unsigned long data)
*/
if (ohci->next_config_rom != NULL) {
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
ohci->config_rom, ohci->config_rom_bus);
free_rom = ohci->config_rom;
free_rom_bus = ohci->config_rom_bus;
ohci->config_rom = ohci->next_config_rom;
ohci->config_rom_bus = ohci->next_config_rom_bus;
ohci->next_config_rom = NULL;
@ -990,6 +992,10 @@ static void bus_reset_tasklet(unsigned long data)
spin_unlock_irqrestore(&ohci->lock, flags);
if (free_rom)
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
free_rom, free_rom_bus);
fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation,
self_id_count, ohci->self_id_buffer);
}
@ -1186,7 +1192,7 @@ ohci_set_config_rom(struct fw_card *card, u32 *config_rom, size_t length)
{
struct fw_ohci *ohci;
unsigned long flags;
int retval = 0;
int retval = -EBUSY;
__be32 *next_config_rom;
dma_addr_t next_config_rom_bus;
@ -1240,10 +1246,7 @@ ohci_set_config_rom(struct fw_card *card, u32 *config_rom, size_t length)
reg_write(ohci, OHCI1394_ConfigROMmap,
ohci->next_config_rom_bus);
} else {
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
next_config_rom, next_config_rom_bus);
retval = -EBUSY;
retval = 0;
}
spin_unlock_irqrestore(&ohci->lock, flags);
@ -1257,6 +1260,9 @@ ohci_set_config_rom(struct fw_card *card, u32 *config_rom, size_t length)
*/
if (retval == 0)
fw_core_initiate_bus_reset(&ohci->card, 1);
else
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
next_config_rom, next_config_rom_bus);
return retval;
}