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| author | njl <njl@FreeBSD.org> | 2005-05-20 05:04:22 +0000 |
|---|---|---|
| committer | njl <njl@FreeBSD.org> | 2005-05-20 05:04:22 +0000 |
| commit | 9ab8d98ce568fc756b4d0a97f73188f2c593e49e (patch) | |
| tree | 31206b66d860791dc40ccecc90058b86117a3d27 | |
| parent | d8af4c8b76742ac9db58b0e960129399e40ac535 (diff) | |
| download | FreeBSD-src-9ab8d98ce568fc756b4d0a97f73188f2c593e49e.zip FreeBSD-src-9ab8d98ce568fc756b4d0a97f73188f2c593e49e.tar.gz | |
Document that the returned pointer should be freed even if the number
of items returned is 0.
| -rw-r--r-- | share/man/man9/devclass_get_devices.9 | 7 | ||||
| -rw-r--r-- | share/man/man9/devclass_get_drivers.9 | 5 | ||||
| -rw-r--r-- | sys/kern/subr_bus.c | 2 |
3 files changed, 10 insertions, 4 deletions
diff --git a/share/man/man9/devclass_get_devices.9 b/share/man/man9/devclass_get_devices.9 index 2872adc..797a2f6 100644 --- a/share/man/man9/devclass_get_devices.9 +++ b/share/man/man9/devclass_get_devices.9 @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 16, 1998 +.Dd May 19, 2005 .Dt DEVCLASS_GET_DEVICES 9 .Os .Sh NAME @@ -46,7 +46,10 @@ return the list in and the count in .Fa *devcountp . The memory allocated for the list should be freed using -.Fn free "*devlistp" "M_TEMP" . +.Fn free "*devlistp" "M_TEMP" , +even if +.Fa *devcountp +is 0. .Sh RETURN VALUES Zero is returned on success, otherwise an appropriate error is returned. .Sh SEE ALSO diff --git a/share/man/man9/devclass_get_drivers.9 b/share/man/man9/devclass_get_drivers.9 index f9561eb..ee6629b 100644 --- a/share/man/man9/devclass_get_drivers.9 +++ b/share/man/man9/devclass_get_drivers.9 @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd April 3, 2005 +.Dd May 19, 2005 .Dt DEVCLASS_GET_DRIVERS 9 .Os .Sh NAME @@ -47,6 +47,9 @@ and the number of drivers in the list in .Fa *countp . The memory allocated for the list should be freed using .Fn free "*listp" "M_TEMP" . +even if +.Fa *countp +is 0. .Sh RETURN VALUES Zero is returned on success, otherwise an appropriate error is returned. .Sh SEE ALSO diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index 3f2e477..1d7f3eb 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -1098,7 +1098,7 @@ devclass_get_softc(devclass_t dc, int unit) * An array containing a list of all the devices in the given devclass * is allocated and returned in @p *devlistp. The number of devices * in the array is returned in @p *devcountp. The caller should free - * the array using @c free(p, M_TEMP). + * the array using @c free(p, M_TEMP), even if @p *devcountp is 0. * * @param dc the devclass to examine * @param devlistp points at location for array pointer return |
