From: Ayush Sawal ayush.sawal@chelsio.com
commit ad59ddd02de26271b89564962e74d689f1a30b49 upstream.
This issue occurs only when multiadapters are present. Hang happens because assign_chcr_device returns u_ctx pointer of adapter which is not yet initialized as for this adapter cxgb_up is not been called yet.
The last_dev pointer is used to determine u_ctx pointer and it is initialized two times in chcr_uld_add in chcr_dev_add respectively.
The fix here is don't initialize the last_dev pointer during chcr_uld_add. Only assign to value to it when the adapter's initialization is completed i.e in chcr_dev_add.
Fixes: fef4912b66d62 ("crypto: chelsio - Handle PCI shutdown event").
Signed-off-by: Ayush Sawal ayush.sawal@chelsio.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/crypto/chelsio/chcr_core.c | 2 -- 1 file changed, 2 deletions(-)
--- a/drivers/crypto/chelsio/chcr_core.c +++ b/drivers/crypto/chelsio/chcr_core.c @@ -125,8 +125,6 @@ static void chcr_dev_init(struct uld_ctx atomic_set(&dev->inflight, 0); mutex_lock(&drv_data.drv_mutex); list_add_tail(&u_ctx->entry, &drv_data.inact_dev); - if (!drv_data.last_dev) - drv_data.last_dev = u_ctx; mutex_unlock(&drv_data.drv_mutex); }