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(parent: bfe1e61) | patch
drivers: net: davinci_mdio: prevent spurious timeout
authorSekhar Nori <nsekhar@ti.com>
Wed, 9 May 2018 15:45:15 +0000 (21:15 +0530)
committerDavid S. Miller <davem@davemloft.net>
Thu, 10 May 2018 20:18:59 +0000 (16:18 -0400)
commit54472edff0afa09e35828b2b81b00695a9da1c17
treedb4fdaf085508718242139a458c75d790cbb15c6tree | snapshot
parentbfe1e616b3cdf1176a8f18ca26606ff00785a8decommit | diff
drivers: net: davinci_mdio: prevent spurious timeout

A well timed kernel preemption in the time_after() loop
in wait_for_idle() can result in a spurious timeout
error to be returned.

Fix it by using readl_poll_timeout() which takes care of
this issue.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ti/davinci_mdio.c diff | blob | history
Domain: System / Kernel;