From: Julia Lawall <julia.law...@lip6.fr> Delete successive tests to the same location. The current value of ln has been tested already, and is clearly not NULL, given the enclosing if condition. Furthermore, the result of csio_lnode_alloc is currently ignored.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @s exists@ local idexpression y; expression x,e; @@ *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } ... when != \(y = e\|y += e\|y -= e\|y |= e\|y &= e\|y++\|y--\|&y\) when != \(XT_GETPAGE(...,y)\|WMI_CMD_BUF(...)\) *if ( \(x == NULL\|IS_ERR(x)\|y != 0\) ) { ... when forall return ...; } // </smpl> Signed-off-by: Julia Lawall <julia.law...@lip6.fr> --- Not tested. I don't know if this is the right fix. drivers/scsi/csiostor/csio_lnode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/csiostor/csio_lnode.c b/drivers/scsi/csiostor/csio_lnode.c index ffe9be0..d956f97 100644 --- a/drivers/scsi/csiostor/csio_lnode.c +++ b/drivers/scsi/csiostor/csio_lnode.c @@ -873,7 +873,7 @@ csio_handle_link_up(struct csio_hw *hw, uint8_t portid, uint32_t fcfi, if (ln->vnp_flowid != CSIO_INVALID_IDX) { /* New VN-Port */ spin_unlock_irq(&hw->lock); - csio_lnode_alloc(hw); + ln = csio_lnode_alloc(hw); spin_lock_irq(&hw->lock); if (!ln) { csio_err(hw, -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
