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authorTakashi Iwai <tiwai@suse.de>2019-02-28 13:30:55 +0100
committerTakashi Iwai <tiwai@suse.de>2019-02-28 13:30:55 +0100
commit70395a96bd882d8dba669f99b5cec0008690accd (patch)
tree37f3a4c2cf35828f153f3ce59c3daa4f39241c32 /drivers/net/ethernet/altera/altera_msgdma.c
parentf97a0944a72b26a2bece72516294e112a890f98a (diff)
parent3146089d235b304e665dc551472ae9cb9ab58572 (diff)
Merge tag 'asoc-v5.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: More changes for v5.1 Another batch of changes for ASoC, no big core changes - it's mainly small fixes and improvements for individual drivers. - A big refresh and cleanup of the Samsung drivers, fixing a number of issues which allow the driver to be used with a wider range of userspaces. - Fixes for the Intel drivers to make them more standard so less likely to get bitten by core issues. - New driver for Cirrus Logic CS35L26.
Diffstat (limited to 'drivers/net/ethernet/altera/altera_msgdma.c')
-rw-r--r--drivers/net/ethernet/altera/altera_msgdma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/altera/altera_msgdma.c b/drivers/net/ethernet/altera/altera_msgdma.c
index 0fb986ba3290..0ae723f75341 100644
--- a/drivers/net/ethernet/altera/altera_msgdma.c
+++ b/drivers/net/ethernet/altera/altera_msgdma.c
@@ -145,7 +145,8 @@ u32 msgdma_tx_completions(struct altera_tse_private *priv)
& 0xffff;
if (inuse) { /* Tx FIFO is not empty */
- ready = priv->tx_prod - priv->tx_cons - inuse - 1;
+ ready = max_t(int,
+ priv->tx_prod - priv->tx_cons - inuse - 1, 0);
} else {
/* Check for buffered last packet */
status = csrrd32(priv->tx_dma_csr, msgdma_csroffs(status));