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| author | Linus Walleij <linus.walleij@linaro.org> | 2019-02-17 23:59:33 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-02-17 23:59:33 +0300 |
| commit | 8fab3d713ca36bf4ad4dadec0bf38f5e70b8999d (patch) | |
| tree | 18cdadced0870584ceffa02eed47f4c86da8263c /drivers/net/ethernet/altera/altera_msgdma.c | |
| parent | 760a160e8b899f5ebcab99da17feebbe40ec42f1 (diff) | |
| parent | 68b7587baabfa42ca5625b709691358fee51b9d8 (diff) | |
| download | linux-8fab3d713ca36bf4ad4dadec0bf38f5e70b8999d.tar.xz | |
Merge tag 'gpio-v5.1-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel
gpio updates for v5.1
- support for a new variant of pca953x
- documentation fix from Wolfram
- some tegra186 name changes
- two minor fixes for madera and altera-a10sr
Diffstat (limited to 'drivers/net/ethernet/altera/altera_msgdma.c')
| -rw-r--r-- | drivers/net/ethernet/altera/altera_msgdma.c | 3 |
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)); |