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Commit 4818d14d authored by Prasanna S.Panchamukhi's avatar Prasanna S.Panchamukhi Committed by Inaky Perez-Gonzalez
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wimax/i2400m: fix incorrect return -ESHUTDOWN when there is no Tx buffer available 



i2400m_tx() routine was returning -ESHUTDOWN even when there was no Tx buffer
available. This patch fixes the i2400m_tx() to return -ESHUTDOWN only when
the device is down(i2400m->tx_buf is NULL) and also to return -ENOSPC
when there is no Tx buffer. Error seen in the kernel log.
kernel: i2400m_sdio mmc0:0001:1: can't send message 0x5606: -108
kernel: i2400m_sdio mmc0:0001:1: Failed to issue 'Enter power save'command: -108

Signed-off-by: default avatarPrasanna S.Panchamukhi <prasannax.s.panchamukhi@intel.com>
parent 2b0b05dd

drivers/net/wimax/i2400m/tx.c

+4 −2
Original line number Diff line number Diff line
@@ -643,9 +643,11 @@ int i2400m_tx(struct i2400m *i2400m, const void *buf, size_t buf_len, 
	 * current one is out of payload slots or we have a singleton,

	 * close it and start a new one */

	spin_lock_irqsave(&i2400m->tx_lock, flags);

	/* If tx_buf is NULL, device is shutdown */

	if (i2400m->tx_buf == NULL) {

		result = -ESHUTDOWN;

	if (i2400m->tx_buf == NULL)

		goto error_tx_new;

	}

try_new:

	if (unlikely(i2400m->tx_msg == NULL))

		i2400m_tx_new(i2400m);