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dmaengine: idxd: have command status always set 

The cached command status is only set when the write back status is
is passed in. Move the variable set outside of the check so it is
always set.

Fixes: 0d5c10b4c8 ("dmaengine: idxd: add work queue drain support")
Reported-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162274329740.1822314.3443875665504707588.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang 2021-06-03 11:01:37 -07:00 committed by Vinod Koul
parent e753a64bee
commit 53499d1fc1
1 changed files with 5 additions and 4 deletions
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9
drivers/dma/idxd/device.c
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@ -486,6 +486,7 @@ static void idxd_cmd_exec(struct idxd_device *idxd, int cmd_code, u32 operand,
union idxd_command_reg cmd;
DECLARE_COMPLETION_ONSTACK(done);
unsigned long flags;
u32 stat;
if (idxd_device_is_halted(idxd)) {
dev_warn(&idxd->pdev->dev, "Device is HALTED!\n");
@ -518,11 +519,11 @@ static void idxd_cmd_exec(struct idxd_device *idxd, int cmd_code, u32 operand,
*/
spin_unlock_irqrestore(&idxd->cmd_lock, flags);
wait_for_completion(&done);
stat = ioread32(idxd->reg_base + IDXD_CMDSTS_OFFSET);
spin_lock_irqsave(&idxd->cmd_lock, flags);
if (status) {
*status = ioread32(idxd->reg_base + IDXD_CMDSTS_OFFSET);
idxd->cmd_status = *status & GENMASK(7, 0);
}
if (status)
*status = stat;
idxd->cmd_status = stat & GENMASK(7, 0);
__clear_bit(IDXD_FLAG_CMD_RUNNING, &idxd->flags);
/* Wake up other pending commands */