| Message ID | 20200530073555.577414-1-christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | scsi: cumana_2: Fix different dev_id between 'request_irq()' and 'free_irq()' | expand |
On Sat, May 30, 2020 at 09:35:55AM +0200, Christophe JAILLET wrote: > The dev_id used in 'request_irq()' and 'free_irq()' should match. > So use 'host' in both cases. > > Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> This is itself wrong. cumanascsi_2_intr() requires "info" as the devid. Either cumanascsi_2_intr() needs changing to use shost_priv(host) along with this change, or free_irq() needs changing to use "info". Likely the same for the other patches, I haven't looked.
Le 30/05/2020 à 11:43, Russell King - ARM Linux admin a écrit : > On Sat, May 30, 2020 at 09:35:55AM +0200, Christophe JAILLET wrote: >> The dev_id used in 'request_irq()' and 'free_irq()' should match. >> So use 'host' in both cases. >> >> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") >> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > This is itself wrong. cumanascsi_2_intr() requires "info" as the devid. > Either cumanascsi_2_intr() needs changing to use shost_priv(host) along > with this change, or free_irq() needs changing to use "info". My bad. I've only looked at the difference of the dev_id for the 2 functions, not at the usage of it with the function registered by 'request_irq'. This one is obviously correct, or the driver would have some problems somewhere. I don't know why have chosen to change request_irq and not free_irq. So obvious. I'm a little embarrassed and will send a v2. Thx for the quick reply and review. All the 3 patches being in "/drivers/scsi/arm/", do you prefer only 1 patch for the 3, or separated as I've done so far? CJ > Likely the same for the other patches, I haven't looked. >
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c index 65691c21f133..3a3bf53fa925 100644 --- a/drivers/scsi/arm/cumana_2.c +++ b/drivers/scsi/arm/cumana_2.c @@ -426,7 +426,7 @@ static int cumanascsi2_probe(struct expansion_card *ec, goto out_free; ret = request_irq(ec->irq, cumanascsi_2_intr, - 0, "cumanascsi2", info); + 0, "cumanascsi2", host); if (ret) { printk("scsi%d: IRQ%d not free: %d\n", host->host_no, ec->irq, ret);
The dev_id used in 'request_irq()' and 'free_irq()' should match. So use 'host' in both cases. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/scsi/arm/cumana_2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)