Author: smh
Date: Thu Nov 12 09:45:35 2015
New Revision: 290708
URL: https://svnweb.freebsd.org/changeset/base/290708
Log:
Fix ixl debug sysctls panic
Remove the use of sbuf_data on drained sbufs from the debug sysctls:
* ixl_sysctl_hw_res_alloc
* ixl_sysctl_switch_config
This prevents a kernel panic when accessing these values under a kernel
compiled with INVARIANTS.
Sponsored by: Multiplay
Modified:
head/sys/dev/ixl/if_ixl.c
Modified: head/sys/dev/ixl/if_ixl.c
==============================================================================
--- head/sys/dev/ixl/if_ixl.c Thu Nov 12 09:20:10 2015 (r290707)
+++ head/sys/dev/ixl/if_ixl.c Thu Nov 12 09:45:35 2015 (r290708)
@@ -5119,17 +5119,9 @@ ixl_sysctl_hw_res_alloc(SYSCTL_HANDLER_A
}
error = sbuf_finish(buf);
- if (error) {
- device_printf(dev, "Error finishing sbuf: %d\n", error);
- sbuf_delete(buf);
- return error;
- }
-
- error = sysctl_handle_string(oidp, sbuf_data(buf), sbuf_len(buf), req);
- if (error)
- device_printf(dev, "sysctl error: %d\n", error);
sbuf_delete(buf);
- return error;
+
+ return (error);
}
/*
@@ -5236,15 +5228,6 @@ ixl_sysctl_switch_config(SYSCTL_HANDLER_
sbuf_delete(nmbuf);
error = sbuf_finish(buf);
- if (error) {
- device_printf(dev, "Error finishing sbuf: %d\n", error);
- sbuf_delete(buf);
- return error;
- }
-
- error = sysctl_handle_string(oidp, sbuf_data(buf), sbuf_len(buf), req);
- if (error)
- device_printf(dev, "sysctl error: %d\n", error);
sbuf_delete(buf);
return (error);
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