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Commit 5b999fd04af95e2cb624aaf6a7637561572b2d96

Authored by Karsten Keil
Committed by David S. Miller
1 parent 7be7e93268
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

ISDN: Add check for return value of pnp_activate_dev() 

pnp_activate_dev() return value needs to be checked to make sure that
following calls calls to the PNP functions do work correctly.
Fix for report #44491 on bugzilla.kernel.org.

Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff

drivers/isdn/hisax/isurf.c
Diff comments   View file @ 5b999fd
... ... @@ -231,6 +231,11 @@
231 231 }
232 232 pnp_disable_dev(pnp_d);
233 233 err = pnp_activate_dev(pnp_d);
  234 + if (err < 0) {
  235 + pr_warn("%s: pnp_activate_dev ret=%d\n",
  236 + __func__, err);
  237 + return 0;
  238 + }
234 239 cs->hw.isurf.reset = pnp_port_start(pnp_d, 0);
235 240 cs->hw.isurf.phymem = pnp_mem_start(pnp_d, 1);
236 241 cs->irq = pnp_irq(pnp_d, 0);