From dd1f635fe0f14d8c03181f9f1f743b127694fc14 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Wed, 19 Mar 2008 15:24:21 +0100 Subject: [PATCH] libertas: fix spinlock recursion bug This fixes a bug detected by CONFIG_DEBUG_SPINLOCK: if_cs_get_int_status() is only called from lbs_thread(), via priv->hw_get_int_status. However, lbs_thread() has already taken the priv->driver_lock. So it's a fault to take the same lock again here. Signed-off-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_cs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 5a9cadb97503..038c66a98f15 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -677,9 +677,7 @@ sbi_get_int_status_exit: /* Card has a command result for us */ if (*ireg & IF_CS_C_S_CMD_UPLD_RDY) { - spin_lock(&priv->driver_lock); ret = if_cs_receive_cmdres(priv, priv->upld_buf, &priv->upld_len); - spin_unlock(&priv->driver_lock); if (ret < 0) lbs_pr_err("could not receive cmd from card\n"); } -- 2.20.1